K2AV wrote:
>That's when you start to understand how higher angles are going to help
you work the next layer of signals in a contest.

High angles predominate in the latter 2/3's of
most openings I've seen on 10 meters. The lower
angles of my 3-stack typically becomes too low after
the band fully opens when the lower 2 take over.
After about 17-18z, the lower antenna alone takes
over.